def set_watcher(self, watcher_type, force=False): if watcher_type == self.watcher_type: return watcher = create_file_watcher(self.pl, watcher_type) with self.lock: if self.watcher_type == 'deferred': self.watcher.transfer_calls(watcher) self.watcher = watcher self.watcher_type = watcher_type
def __init__(self, shutdown_event=None, watcher=None, load=load_json_config):
super(ConfigLoader, self).__init__()
self.shutdown_event = shutdown_event or Event()
self.watcher = watcher or create_file_watcher()
self._load = load
self.pl = None
self.interval = None
self.lock = Lock()
self.watched = defaultdict(set)
self.missing = defaultdict(set)
self.loaded = {}
def __init__(self, shutdown_event=None, watcher=None, load=load_json_config):
super(ConfigLoader, self).__init__()
self.shutdown_event = shutdown_event or Event()
self.watcher = watcher or create_file_watcher()
self._load = load
self.pl = None
self.interval = None
self.lock = Lock()
self.watched = defaultdict(set)
self.missing = defaultdict(set)
self.loaded = {}
def test_file_watcher(self):
from powerline.lib.file_watcher import create_file_watcher
w = create_file_watcher(use_stat=False)
if w.is_stat_based:
raise SkipTest(
'This test is not suitable for a stat based file watcher')
f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x),
(1, 2, 3))
with open(f1, 'wb'):
with open(f2, 'wb'):
with open(f3, 'wb'):
pass
ne = os.path.join(INOTIFY_DIR, 'notexists')
self.assertRaises(OSError, w, ne)
self.assertTrue(w(f1))
self.assertTrue(w(f2))
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Repeat once
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that no false changes are reported
self.assertFalse(w(f1), 'Spurious change detected')
self.assertFalse(w(f2), 'Spurious change detected')
# Check that open the file with 'w' triggers a change
with open(f1, 'wb'):
with open(f2, 'wb'):
pass
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that writing to a file with 'a' triggers a change
with open(f1, 'ab') as f:
f.write(b'1')
self.do_test_for_change(w, f1)
# Check that deleting a file registers as a change
os.unlink(f1)
self.do_test_for_change(w, f1)
# Test that changing the inode of a file does not cause it to stop
# being watched
os.rename(f3, f2)
self.do_test_for_change(w, f2)
self.assertFalse(w(f2), 'Spurious change detected')
os.utime(f2, None)
self.do_test_for_change(w, f2)
def test_file_watcher(self):
from powerline.lib.file_watcher import create_file_watcher
w = create_file_watcher(use_stat=False)
if w.is_stat_based:
raise SkipTest('This test is not suitable for a stat based file watcher')
f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x), (1, 2, 3))
with open(f1, 'wb'):
with open(f2, 'wb'):
with open(f3, 'wb'):
pass
ne = os.path.join(INOTIFY_DIR, 'notexists')
self.assertRaises(OSError, w, ne)
self.assertTrue(w(f1))
self.assertTrue(w(f2))
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Repeat once
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that no false changes are reported
self.assertFalse(w(f1), 'Spurious change detected')
self.assertFalse(w(f2), 'Spurious change detected')
# Check that open the file with 'w' triggers a change
with open(f1, 'wb'):
with open(f2, 'wb'):
pass
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that writing to a file with 'a' triggers a change
with open(f1, 'ab') as f:
f.write(b'1')
self.do_test_for_change(w, f1)
# Check that deleting a file registers as a change
os.unlink(f1)
self.do_test_for_change(w, f1)
# Test that changing the inode of a file does not cause it to stop
# being watched
os.rename(f3, f2)
self.do_test_for_change(w, f2)
self.assertFalse(w(f2), 'Spurious change detected')
os.utime(f2, None)
self.do_test_for_change(w, f2)
def test_file_watcher(self):
from powerline.lib.file_watcher import create_file_watcher
w = create_file_watcher(use_stat=False)
if w.is_stat_based:
raise SkipTest("This test is not suitable for a stat based file watcher")
f1, f2 = os.path.join(INOTIFY_DIR, "file1"), os.path.join(INOTIFY_DIR, "file2")
with open(f1, "wb"):
with open(f2, "wb"):
pass
ne = os.path.join(INOTIFY_DIR, "notexists")
self.assertRaises(OSError, w, ne)
self.assertTrue(w(f1))
self.assertTrue(w(f2))
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Repeat once
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that no false changes are reported
self.assertFalse(w(f1), "Spurious change detected")
self.assertFalse(w(f2), "Spurious change detected")
# Check that open the file with 'w' triggers a change
with open(f1, "wb"):
with open(f2, "wb"):
pass
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that writing to a file with 'a' triggers a change
with open(f1, "ab") as f:
f.write(b"1")
self.do_test_for_change(w, f1)
# Check that deleting a file registers as a change
os.unlink(f1)
self.do_test_for_change(w, f1)
def file_watcher():
global _file_watcher
if _file_watcher is None:
from powerline.lib.file_watcher import create_file_watcher
_file_watcher = create_file_watcher()
return _file_watcher
def file_watcher(): global _file_watcher if _file_watcher is None: from powerline.lib.file_watcher import create_file_watcher _file_watcher = create_file_watcher() return _file_watcher
def __init__(self): global watcher self.subscribers.add(self) if not watcher: watcher = create_file_watcher()
def branch_watcher(): global _branch_watcher if _branch_watcher is None: from powerline.lib.file_watcher import create_file_watcher _branch_watcher = create_file_watcher() return _branch_watcher
def branch_watcher():
global _branch_watcher
if _branch_watcher is None:
from powerline.lib.file_watcher import create_file_watcher
_branch_watcher = create_file_watcher()
return _branch_watcher
def get(segment, side):
segment_type = segment.get('type', 'function')
try:
get_segment_info = segment_getters[segment_type]
except KeyError:
raise TypeError('Unknown segment type: {0}'.format(segment_type))
try:
contents, _contents_func, module = get_segment_info(data, segment)
except Exception as e:
pl.exception('Failed to generate segment from {0!r}: {1}', segment, str(e), prefix='segment_generator')
return None
if segment_type == 'function':
highlight_group = [module + '.' + segment['name'], segment['name']]
else:
highlight_group = segment.get('highlight_group') or segment.get('name')
if segment_type == 'function':
args = dict(((str(k), v) for k, v in get_key(segment, module, 'args', {}).items()))
startup_func = get_attr_func(_contents_func, 'startup', args)
shutdown_func = get_attr_func(_contents_func, 'shutdown', None)
if hasattr(_contents_func, 'powerline_requires_filesystem_watcher'):
create_watcher = lambda: create_file_watcher(pl, common_config['watcher'])
args[str('create_watcher')] = create_watcher
if hasattr(_contents_func, 'powerline_requires_segment_info'):
contents_func = lambda pl, segment_info: _contents_func(pl=pl, segment_info=segment_info, **args)
else:
contents_func = lambda pl, segment_info: _contents_func(pl=pl, **args)
else:
startup_func = None
shutdown_func = None
contents_func = None
return {
'name': segment.get('name'),
'type': segment_type,
'highlight_group': highlight_group,
'divider_highlight_group': None,
'before': get_key(segment, module, 'before', ''),
'after': get_key(segment, module, 'after', ''),
'contents_func': contents_func,
'contents': contents,
'args': args if segment_type == 'function' else {},
'priority': segment.get('priority', None),
'draw_hard_divider': segment.get('draw_hard_divider', True),
'draw_soft_divider': segment.get('draw_soft_divider', True),
'draw_inner_divider': segment.get('draw_inner_divider', False),
'side': side,
'exclude_modes': segment.get('exclude_modes', []),
'include_modes': segment.get('include_modes', []),
'width': segment.get('width'),
'align': segment.get('align', 'l'),
'startup': startup_func,
'shutdown': shutdown_func,
'_rendered_raw': '',
'_rendered_hl': '',
'_len': 0,
'_space_left': 0,
'_space_right': 0,
}
